Speaker



FIG. 1 is a front perspective view of a speaker showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a side view thereof;

FIG. 5 is another side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is an enlarged view of the portion 8 encircles in FIG. 2; and,

FIG. 9 is a cross-sectional view thereof taken along line 9-9 of FIG. 8.

The broken lines are for environmental purposes only and form no part of the claimed design. The dot-dot-dash broken lines encircling portions of the claimed design that are illustrated in enlargements form no part of the claimed design. 

CLAIM I claim, the ornamental design for a speaker, as shown and described. 